[音频]Li Qing: Hello. ______1____________ ?Mr. Black: Oh, yes. Simon Black.Li Qing: ______2_________, Mr. Black?Mr. Black: How do you do? ________3___________?Li Qing: Yes. My name is Li Qing. ________4_____________.Mr. Black: Nice to meet you, too.

What’s Li Xiao long's English name A: Brown Li B: Black Li C: Bruce Li

The boy ______ black is Li Lei. A: in B: on C: at

In order to promote our business relations, Miss Li gave Mr. Black some free samples.

中国大学MOOC: Which aspects of company profile does Miss Li present to Mr. Black?

中国大学MOOC: It’s inconvenient for Miss. Li to show Mr. Black around the sample room.

中国大学MOOC: Mr. Black’s company has a longer history than Miss Li’s.

中国大学MOOC: Miss Li gives Mr. Black her company’s profile and promotional literature for his information.

Which aspects of company profile does Miss Li present to Mr. Black? A: staff and headquarters B: business activities and history C: products and services D: present development and reputation

HTML： <ul> <li>1</li> <li>2</li> <li>3</li> </ul> <ul> <li>A</li> <li>B</li> <li>C</li> </ul> CSS： li:nth-child(1){ color:red; } 哪些元素变为红色？